Three terminal battery

ABSTRACT

A three terminal battery includes a first anode, a first cathode, a second anode, a second cathode connected to the first cathode, a first terminal, a second terminal, and a third terminal. The first anode is connected to the first terminal. The second anode is connected to the second terminal. The first cathode and the second cathode are connected to the third terminal.

BACKGROUND

1. Technical Field

The present disclosure relates to batteries, and particularly to a three terminal battery with a first positive voltage output, a second positive voltage output, and a negative voltage output.

2. Description of Related Art

A group of batteries are connected in series in order to obtain a first positive voltage output, a second positive voltage output, and a negative voltage output, however, if this could be accomplished using only one battery, it would be more convenient and save on resources.

Therefore, it is desirable to provide a three terminal battery with a first positive voltage output, a second positive voltage output, and a negative voltage output.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the present disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic view of an embodiment of a three terminal battery.

FIG. 2 is a schematic view of movement of electrochemical ions when the three terminal battery of FIG. 1 is charging.

FIG. 3 is a schematic view of movement of electrochemical ions when the three terminal battery of FIG. 1 is discharging.

DETAILED DESCRIPTION

Embodiments of the present disclosure will be described with reference to the drawings.

FIG. 1 is a schematic view of an embodiment of a three terminal battery 1. The three terminal battery 1 includes a first anode 10, a first cathode 20, a second anode 30, and a second cathode 40, several isolating membranes 50, and a shell 60. The battery 1 has electrolyte inside that allows ions to move from anode to cathode during discharge and recharge. The first anode 10, the first cathode 20, the second anode 30, the second cathode 40, the several isolating membranes 50, and the shell 60 can all be made using conventional materials which are known in the art.

The first cathode 20 is connected to the second cathode 40, the first anode 10 is connected to a first terminal 101, a second anode 30 is connected to a second terminal 102, and the first cathode 20 and the second cathode 40 are connected to a third terminal 103.

In an embodiment, the first anode 10 and the second anode 30 are made of aluminum(AL), the first cathode 20 and the second cathode 40 are made of copper(CU). One side of the first anode 10 near to the first cathode 20 is layered with LiCo02. Both sides of the first cathode 20 are layered with carbon (C). Both sides of the second anode 30 are layered with LiCo02. One side of the second cathode 40 near to the second anode 30 is layered with carbon (C).

FIG. 2 is a schematic view of movement of electrochemical ions when the three terminal battery 1 is charging.

To charge the battery 1, the first anode 10 and the second anode 30 are connected to a positive terminal of a power source, the first cathode 20 and the second cathode 40 are connected to a negative terminal of the power source. The first anode 10 and the second anode 30 generates Li+ ions, which are driven by the positive terminal and the negative terminal of the power source to the C layered sides. As shown in FIG. 2, the ions Li+ from the first anode 10 move to one side of the first cathode 20, the ions Li+ from one side of the second anode 30 move to the other side of the first cathode 20, and the ions Li+ from the other side of the second anode 30 move to the C layered side of the second cathode 40.

FIG. 3 is a schematic view of movement of electrochemical ions when the battery 1 discharges. Compared with FIG. 2, when discharging, the ions Li+ move reverse order from the C layered sides back to the anodes 10, 30. As shown in FIG. 3, the Li+ ions from one side of the first cathode 20 move to the first anode 10, the Li+ ions from the other side of the first cathode 20 move to one side of the second anode 30, and the Li+ ions from the second cathode 40 move to the other side of the second anode 30.

As both sides of the second anode 30 are layered with LiCo02, and only one side of the first anode 10 is layered with LiCo02, and both sides of the first cathode 20 are layered with carbon (C), and only one side of the second cathode 40 is layered with C, output voltage of the first anode 10 is lower than output voltage of the second anode 30, that is, a voltage output of the first terminal 101 is lower than a voltage output of the second terminal 102.

Therefore, using the third terminal 103 as the negative terminal, a first voltage output is obtained from the first terminal 101, a second voltage output is obtained from the second terminal 102; using the first terminal 101 as a negative terminal, a negative voltage is obtained from the third terminal 103, and a positive voltage is obtained from the second terminal 102.

It will be understood that the above particular embodiments are shown and described by way of illustration only. The principles and the features of the present disclosure may be employed in various and numerous embodiments thereof without departing from the scope of the disclosure. The above-described embodiments illustrate the possible scope of the disclosure but do not restrict the scope of the disclosure. 

What is claimed is:
 1. A three terminal battery comprising: a first anode; a first cathode; a second anode; a second cathode, connected with the first cathode; a first terminal; a second terminal; and a third terminal; wherein the first anode is connected to the first terminal, the second anode is connected to the second terminal, and the first cathode and the second cathode are connected to the third terminal.
 2. The three terminal battery of claim 1, wherein the first anode and the second anode are made of aluminium, the first cathode and the second cathode are made of copper, one side of the first anode near to the first cathode is layered with LiCo02, both sides of the first cathode are layered with carbon (C), both sides of the second anode are layered with LiCo02, and one side of the second cathode near to the second anode is layered with carbon (C).
 3. The three terminal battery of claim 2, wherein when being charged, ions Li+ from the first anode move to one side of the first cathode, the ions Li+ from one side of the second anode move to the other side of the first cathode, and the ions Li+ from the other side of the second anode move to the C layered side of the second cathode; and when discharging, the Li+ ions from one side of the first cathode move to the first anode, the Li+ ions from the other side of the first cathode move to one side of the second anode, and the Li+ ions from the second cathode move to the other side of the second anode.
 4. The three terminal battery of claim 2, wherein a voltage output of the first anode is lower than a voltage output of the second anode.
 5. The three terminal battery of claim 1, wherein when the third terminal is used as a negative terminal, a first voltage output is obtained from the first terminal, a second voltage output is obtained from the second terminal; when the first terminal is used as a negative terminal, a negative voltage is obtained from the third terminal, and a positive voltage is obtained from the second terminal. 